Batman: Arkham Unhinged — DC Comics
Issue: #17
Flash back to Gotham before Arkham City, to the last time Catwoman, Poison Ivy, and Harley Quinn worked together! The Sirens are hot on the case of an animal-killing criminal and everything should be running like clockwork, but once Batman arrives will his presence split the team?
Creators: Mico Suayan, Derek Fridolfs, Sarah Gaydos, Santi Casas, Andrew Elder, Mike Miller, Jim Chadwick, David Lopez (Ikari Studio)
Characters: Batman, Poison Ivy, Catwoman, Harley Quinn, Hugo Strange